		 BDOS.  .

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0080.       " 
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   0.  " ".
    :  =00
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   1.  .
    :  =01
    : =  
          
    "".
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), LF ( ), BSP ()   
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 8  .      
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  )  /  
  - CTRL/S.        
,      .

   2.    .
    :  =02
    : =   
       ""  (   ASCII)
   .    1 
      CTRL/I,
CTRL/S, CTRL/P  .

   3.     
	       READER - .
    :  =03
    : =   
          OS-DOS 
     ""    
BIOS.   3  4   
  .

   4.     
	       PUSCH - .
    :  =04
	   =   
        3     "" 
   BIOS.
 
   5.     
	       LIST - 
    :  =05
	   =   
         
     ""   
BIOS.

   6. /     
	       (   ).
    :  =06
	   = 0FFH  0FEH	    -  
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 ),   "" :
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,     .   
,    ,  .

   7.     ()
    :  =07
    : =  

   8.    
    :  =08
	   =   

   9.   
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	   D=   
          ,
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   .     
     CTRL/S,
CTRL/P, CTRL/I.

   10.    
    :   =0
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         :

      DE:
      ..............................................
      : MX : NC : C1 : C2 : Cn	.  .  .  .  .  ????:
      :....:....:....:....:........................:

    
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	       1  255);
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:
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	      );
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    CTRL/ - /   ;
    CTRL/R -   ()
	      ;
    CTRL/U -       
	     (    );
      -      
	        ;
    CTRL/ -       .
	          ,  
	            .

   11.    ()
    :  =0
	   =  
          
   .    ,   ""
  01.     - =00.

   12.    
    :  =0
	   HL=   - 0022 =  2.2

   13.   
    :  =0D
         " " 
(CTRL/C),     . 
  " "    13
   /,      
 .     
 "",       
"R/O" (. 28),     (DMA)
 0080.

   14.  
    :   = 0
	    =   (0- "", 1- ""
		      2- "")
         
 "/ "  " "
( 13).      
  ,      FCB
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   15.  
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),    ""  0FFH.
           
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    ( 32  FCB) 
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   16.  
    :   =10
	   D=   FCB
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FCB       .  
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.	     , 
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      .

   17.  
    :   =11
	   D=   FCB
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 ,     FCB.
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,     ( DMA) -  ,
  .    
       
 *32.      ,  
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  (. 18).

   18.  
    :   =12
	   D=   FCB
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",   ,   
   ,   
 FCB.      ,  
 ""  0FFH.

   19.  
    :   =13
	   D=   FCB
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(),      FCB.   
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 ""   ,  
,     0FFH.

   20.  
    :   =14
	   D=   FCB
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     ( 15).
           
,    , .. 
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  ,    
      
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.
 
   21.  
    :   =15
	   D=   FCB
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  15  22).	   
         
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,      .
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   22.  .
    :   =16
	   D=   FCB
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FCB  .     ,  
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""  0FFH.

   23.  .
    :   =17
	   D=   FCB
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,     16  28    FCB.  
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  00.
       ,   ""
    ,    -
0FFH.

   24.    
    :   =18
    : HL=   
         16-
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 ( ),  -   
" "         
        FCB.

   25.   ()  
    :   =19
    :  =   
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=00 -  "", =01 -  "", =02 -  "".

   26.     (DMA)
    :   =1
	   D=   
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    26    
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" ",      
.       
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   27.     
    :   =1
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 ,    
       .

   28.      
    :   =1
          
 .	 ,   
"/ ",    
     :
 BDOS ERR ON D: R/O,   D -  

   29.   " R/O".
    :   =1D
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R/O ( ).      
 "",  - ""  ...

   30.   .
    :   =1
	   D=   FCB
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   9  FCB  "1",  R/W (/
),     "0".

   31.    
    :   =1F
    : HL=   .
          
 .    ( ,
    ..)   BIOS.

   32. /   (USER)
    :   =20
	    = 0FFH ()   
    :  =    ( )
		         ( ).

   33.  
    :   =21
	   D=   FCB
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FCB -  33  34,  35   
, ..     
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.
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   34.  
    :   =22
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(33  34    FCB)     
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   35.   .
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   36.      
    :   =24
	   D=   FCB
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   37-39  /  2.2 .

   40.     
    :   =28
	   D=   FCB
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		     /

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5     ).   
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						    2.
 0000 0041 5649 3130 3424 2042 5255 0000 0030 .AVI104$ BRU...0
 0010 0200 0300 0400 0000 0000 0000 0000 0000 ................
 0020 004B 4559 414C 5424 2042 5255 0000 0010 .KEYALT$ BRU....
 0030 0500 0000 0000 0000 0000 0000 0000 0000 ................
 0040 0046 5430 3120 2020 2042 5255 0000 0008 .FT01    BRU....
 0050 0600 0000 0000 0000 0000 0000 0000 0000 ................
 0060 0031 5F54 5820 2020 2042 5255 0000 0010 .1_    BRU....
 0070 0700 0000 0000 0000 0000 0000 0000 0000 ................

 0080 0044 4F53 525F 5458 2042 5255 0000 0080 .DOSR_TX BRU....
 0090 0800 0900 0A00 0B00 0C00 0D00 0E00 0F00 ................
 00A0 0044 4F53 525F 5458 2042 5255 0100 0008 .DOSR_TX BRU....
 00B0 1000 0000 0000 0000 0000 0000 0000 0000 ................
 00C0 0044 4F53 525F 5458 2042 5255 0200 0080 .DOSR_TX BRU....
 00D0 1100 1200 1300 1400 1500 1600 1700 1800 ................
 00E0 E546 4344 525F 5458 2042 5255 0100 0060 .FCDR_TX BRU...`
 00F0 1900 1A00 1B00 1C00 1D00 1E00 0000 0000 ................

        ,  
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,       
BDOS.
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36 (32+4)    .    FCB
   3.
						 3
 ----------------------------------------------------------
 |DR|F1|F2|//|F8|T1|T2|T3|EX|S1|S2|RC|D0|//|DN|CR|R0|R1|R2|
 ----------------------------------------------------------
  00 01 02 .. 08 09 10 11 12 13 14 15 16 .. 31 32 33 34 35 D
 ----------------------------------------------------------
  00 01 02 .. 08 09 0A 0B 0C 0D 0E 0F 10 .. 1F 20 21 22 23 H

    :
    DR	     -  .     0  2.
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		      .
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	         ;
    S1,S2    -    ;
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    D0..DN   -    ,  /;
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FCB    ,   "
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      
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